Furnace-tap



t e e h S 5 b e e h S 3 N. O S W E H T A M n B a d 0 M O W FURNACE TAP.

No. 511,090. Patent ed Dec. 19, 1898.

INVENTOR a/[C *6 I ATTORNEYS.

WITNESSES:

mi mmamu. UI'MGGRAPHM CGUPANYI 1 wnuuuarou. a. c.

No Model) 3 SheetsSheet.2

E. P. MATHBWSON.

FURNACE TAP.

No. 511,090. Patented Dec. 19, 1898.

WITNESSES. INVENTOH A TTOH'NEYS.

(No Model 3 Sheet-Sheet 3. E. P. MATHEWSON.

PURNAGET'AP. No. 511,090 Patented Dec. 19, 1893.

wmv sss: INVENTOH I i ATTORNEYS.

TEE NATQONAL LIYHOEHAPHINH COMPANY- wumm'rou. a c

" UNITED STATES PATENT FFICE.

EDW ARD PAYSON MATHEVVSON, OF PUEBLO, COLORADO.

FU RNAC E-TAP.

SPECIFICATION forming part of Letters Patent No. 511,090, dated December19, 1893.

Application filed April 5, 1893; Serial No. 469,194. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD Parson MATH- EWSON, of Pueblo, in thecountyof Pueblo and State of Colorado, have invented a new and ImprovedFurnace-Tap, of which the following is a full, clear, and exactdescription.

The invention relates to furnace taps, such as shown and described inthe Letters Patent of the United States No. d83,936, granted to meOctober 4., 1892.

The object of the invention is to provide a new and improved furnacetap, which is simple anddurablein construction, and arranged toconveniently separate and quickly run cit the slag at all times.

The invention consists of a water-cooled tube adapted to extend into thefurnace to pass into the molten slag nearly to the matte level, theouter end of the said tube being adapted to discharge into a slag spoutarranged on the outside of the furnace.

The invention also consists of certain parts and details andcombinations of the same, as will be fully described hereinafter andthen pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional side elevation of the improvement. Fig. 2 is anenlarged front elevation of the same with the slag spout removed. Fig. 3isa sectional plan view of the improvement. Fig. at is a sectional frontelevation of the slag spout; and Fig. 5 is a perspeetive view of a bracefor the slag spout.

The furnace on which the improvement is applied is of the usualconstruction, and is provided with the hearth or crucible A on whichismounted the bosh B formed of aseries of water-cooled sections 0 and withthe tuyere openings D, as is plainly illustrated in the drawings.

On the front of the furnace is arranged a matte tap jacket E,water-cooled, and formed with two holes E and E of which the hole E islocated above the hole E and forms an emergency tap hole, while thelower one E is the regular matte tap hole. Both holes E and E areadapted to discharge the matte into a spout F extending on the outsideof Above the matte tap jacket E the furnace.

is arranged a tube G extending into the interior of the furnace towithin a short distance of the matte level, as indicated in Fig. 1, the

said tube being inclined outward and upward, as shown, and the outer endbeing about flush with the outer surface of the bosh B, in one sectionof which the said tube is set. The tube G is formed or provided in itswall with a water-cooling pipe H, extending, atits ends H and H to theoutside, into the flanges G formed on the outer end of the tube G, andconnected by bolts G with the adjacent bosh sections 0, to securely holdthe tube in place. Water is introduced through the end H, to circulatein the tube H, so as to cool the tube, the hot water being discharged atthe end H The outer end of the tube G, is provided with verticallydisposed guideways G engaged by side flanges 1 formed on the slag spoutI extending forwardly and downwardly and curved to one side to dischargethe slag to one side of the matte discharged by the straight spout F.The spoutI is formed at the under side near the inner end with a lug 1adapted to rest on a lug G", formed on the front edge of the tube G. SeeFigs. 1 and 2. When the spoutl is in this position the inner uppersurface registers'with the outer opening of the tube G, as illustratedin Fig. 1. When it is desired to raise the inner upper end of the spoutI, according to the height of the slag in the furnace caused by thevariation in the blast pressure, then the operator can raise the spoutlin its guides G and place auxiliary blocks or wedges between the nowseparated lugs I and G to hold the spout at the proper height. It willbe seen that by this water-cooled slag tube G, the slag can, at alltimes, run out of the furnace into the spout I, to be discharged to oneside of the furnace.

The pressure of the blast and the weight of the charge in the furnace,force the molten slag readily up through the tube G to the spout I. I

A brace J is shown in detail in Fig. 5, is bolted to the front of thetube G and rests with its rear end on the front upper end of the mattetap jacket E to hold the latter in place.

The matte tap jacket is water-cooled and is for this purpose providedwith a water-cooliug pipe K having, its outer ends K and K connectedwith a suitable water-supply and pass into the molten slag to within ashort distance of the matte level, substantially as shown and described.

3. A furnace tap provided with a watercooled slag discharging tubearranged in one side of the bosh and extending inward and downward, theinner end being arranged to pass into the molten slag to within a shortdistance of the matte level, and a spout arranged on the outside of thesaid tube and into which the outer end of the tube dis charges,substantially as shown and described.

4. A furnace tap comprising a water-cooled matte tap jacket formed withan emergency tap hole, a matte tap hole, and awater-cooled slagdischarging tube arranged over the said jacket and extending inward anddownward to pass into the molten slag nearly to the matte level,substantially as shown and described.

5. A furnace tap comprising a water-cooled matte tap jacket formed withan emergency tap hole a matte tap hole, a water-cooled slag dischargingtube arranged over the said jacket and extending inward and downward topass into the molten slag nearly to the matte level, and a slagdischarge spout held adj ustably on the outer end of the said slagdischarge tube, substantially as shown and described.

EDWARD PAYSON MATHEWSON. Witnesses:

WILLIAM H. HOWARD, WILLIAM J. HAMILTON.

